<em>A control is that group in an experiment that does not receive any treatment and is used for comparison with the test result.</em>
<u>Answer:</u> <em>A) a control</em>
<u>Explanation:</u>
In the experiment mentioned, the control is missing because the test group as mentioned are the plant set that receives the treatment that is the different concentration of nitrate and phosphate.
The effect of these nutrients on growth will be observed and evaluated. The time period of the experiment is one month which might exceed.
Electron is the answer hope it help happy to help u=)
Answer:
When gases escape downward out the tail of a rocket, they push upward on the rocket.
Explanation:
Newton's third states that to every action there is an equal and opposite reaction. Examples
- If you hit your head on a wall, your head exert a force on the wall, the wall also exert an equal but opposite force on your head, which will cause pains on your head.
- When you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
The start codon is almost always AUG
